Joomla! Template Proxima PT - Item Support

I have created a fresh public_html folder, unzipped the quickstart.zip there and run the standard joomla install script selecting Default English at the Finalisation step.

It all seems fine, DB gets dropped and re-created, but when the Installing sample data configuration step starts it just kicks back to the Finalise screen.
When accessing the web site you are just presented with the Finalise installation page to run it again and again it fails.

I have tried the scrip selecting different install sample data and also None sample data with the same result.

Would lead me to think that the failure is on the last part of the DB setup. (68 tables are created and there is some data in there). There are no log files to be found so have no clue as to what it could be.

Any idea what is going on here or what I can do to find out what is going on please?

would really like to use this template but now getting a bit tiresom
thanks for any help
best regards
Per Norrgren